lily68 lily68
  • 08-04-2016
  • Mathematics
contestada

What is the common ratio of the geometric sequence: -1/12.-1/2,-3,18,...

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penfila11Pen
penfila11Pen penfila11Pen
  • 09-04-2016
[tex] \frac{1}{6} [/tex] : Common ratio

Check:
=[tex] -\frac{1}{12} [/tex] ÷ [tex] \frac{1}{6} [/tex]
=[tex] -\frac{1}{12} [/tex] × 6
=[tex] -\frac{1}{2} [/tex]

=[tex] -\frac{1}{2} [/tex] ÷ [tex] \frac{1}{6} [/tex]
=[tex]- \frac{1}{2} [/tex] × 6
=-3
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